A deep grove ball bearing running at 5500 r.p.m is required to resist an applied radial load P of 2,500N and having an L10h life of 20,000 hours.What is the most appropriate SKF Cat.No. for a suitable bearing: Use the information in the attached diagram below.C 3- (-)=PL10d101520▬▬▬▬▬▬▬▬▬228889825303540455060708090100DimensionsDmm303547526272808590110125140160180B911141516171819202224263034Load ratingsCCo(dynamic) (static)5.077.812.714.019.525.530.733.235.152.760.570.295.6124KNSpeedlimitrpm24 0002.363.7519 0006.55 15 0007.8012 00010 0009 0008 5007 5007 0006 00011.215.319.021.623.236455573.5935 0004 5003 8003400MassSKFCat No.kg0.0320.04562040.110.1362050.2062060.2962070.3762080.4162090.4662100.7862121.05 62141.402.153.1562006202621662186220Mounting dimensionsd₂ D₂min. maxmm142619 31254230 473557426647745279578468 10278 1178913199151111169T₂max.0.60.611111111.51.5222

The applied radial load is The bearing speed is The life of bearing is The table is

A deep grove ball bearing running at 5500 r.p.m is required to resist an applied radial load P of 2,500N and having an L10h life of 20,000 What is the most appropriate SKF Cat.No. for a suitable bearing: Use the information in the attached diagram below. C 3 P L = 10 d mm 30 35 47 52 62 72 80 85 90 60 110 70 125 80 140 90 160 100 180 10 15 20 25 384858 30 40 Dimensions D 50 B 9 11 14 15 16 17 18 19 20 22 24 TETET 26 30 34 Load ratings C Co (dynamic) (static) KN 5.07 7.8 12.7 14.0 19.5 25.5 30.7 33.2 35.1 52.7 60.5 70.2 95.6 124 2.36 3.75 6.55 7.80 11.2 15.3 19.0 21.6 23.2 36 45 55 73.5 93 Speed limit rpm 24 000 19 000 15 000 12 000 10 000 9000 8 500 7 500 7.000 6 000 5 000 4 500 3 800 3400 Mass kg 0.032 6200 0.045 6202 0.11 0.13 6204 6205 0.20 6206 6207 6208 6209 6210 6212 6214 6216 6218 6220 MARIAN 0.29 0.37 0.41 0.46 0.78 1.05 1.40 SKF Cat No. 2.15 3.15 Mounting dimensions d₂ D₂ min. max mm 14 26 19 25 30 35 42 47 52 57 68 78 89 99 111 31 42 47 57 66 74 79 84 102 117 131 151 169 T₂ max. 0.6 0.6 1 1 1 1 1 1 1 1.5 1.5 2 2 2

A deep grove ball bearing running at 5500 r.p.m is required to resist an applied radial load P of 2,500N and having an L10h life of 20,000 What is the most appropriate SKF Cat.No. for a suitable bearing: Use the information in the attached diagram below. C 3 P L = 10 d mm 30 35 47 52 62 72 80 85 90 60 110 70 125 80 140 90 160 100 180 10 15 20 25 384858 30 40 Dimensions D 50 B 9 11 14 15 16 17 18 19 20 22 24 TETET 26 30 34 Load ratings C Co (dynamic) (static) KN 5.07 7.8 12.7 14.0 19.5 25.5 30.7 33.2 35.1 52.7 60.5 70.2 95.6 124 2.36 3.75 6.55 7.80 11.2 15.3 19.0 21.6 23.2 36 45 55 73.5 93 Speed limit rpm 24 000 19 000 15 000 12 000 10 000 9000 8 500 7 500 7.000 6 000 5 000 4 500 3 800 3400 Mass kg 0.032 6200 0.045 6202 0.11 0.13 6204 6205 0.20 6206 6207 6208 6209 6210 6212 6214 6216 6218 6220 MARIAN 0.29 0.37 0.41 0.46 0.78 1.05 1.40 SKF Cat No. 2.15 3.15 Mounting dimensions d₂ D₂ min. max mm 14 26 19 25 30 35 42 47 52 57 68 78 89 99 111 31 42 47 57 66 74 79 84 102 117 131 151 169 T₂ max. 0.6 0.6 1 1 1 1 1 1 1 1.5 1.5 2 2 2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

A deep grove ball bearing running at 5500 r.p.m is required to resist an applied radial load P of 2,500N and having an L10h life of 20,000 hours.
What is the most appropriate SKF Cat.No. for a suitable bearing: Use the information in the attached diagram below.
C 3
- (-)
=
P
L
10
d
10
15
20
▬▬▬▬▬▬▬▬▬
2288898
25
30
35
40
45
50
60
70
80
90
100
Dimensions
D
mm
30
35
47
52
62
72
80
85
90
110
125
140
160
180
B
9
11
14
15
16
17
18
19
20
22
24
26
30
34
Load ratings
C
Co
(dynamic) (static)
5.07
7.8
12.7
14.0
19.5
25.5
30.7
33.2
35.1
52.7
60.5
70.2
95.6
124
KN
Speed
limit
rpm
24 000
2.36
3.75
19 000
6.55 15 000
7.80
12 000
10 000
9 000
8 500
7 500
7 000
6 000
11.2
15.3
19.0
21.6
23.2
36
45
55
73.5
93
5 000
4 500
3 800
3400
Mass
SKF
Cat No.
kg
0.032
0.045
6204
0.11
0.13
6205
0.20
6206
0.29
6207
0.37
6208
0.41
6209
0.46
6210
0.78
6212
1.05 6214
1.40
2.15
3.15
6200
6202
6216
6218
6220
Mounting dimensions
d₂ D₂
min. max
mm
14
26
19 31
25
42
30 47
35
57
42
66
47
74
52
79
57
84
68 102
78 117
89
131
99
151
111
169
T₂
max.
0.6
0.6
1
1
1
1
1
1
1
1.5
1.5
2
2
2

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Shoulder Load Ratings, KN Fillet Diameter, mm Deep Groove Angular Contact Bore, OD, Width, Radius, mm mm mm mm ds dμ C10 Co C10 Со 10 30 9 0.6 12.5 27 5.07 2.24 4.94 2.12 12 32 10 0.6 14.5 28 6.89 3.10 7.02 3.05 15 35 11 0.6 17.5 31 7.80 3.55 8.06 3.65 17 40 12 0.6 19.5 34 9.56 4.50 9.95 4.75 20 47 14 1.0 25 41 12.7 6.20 13.3 6.55 25 52 15 1.0 30 47 14.0 6.95 14.8 7.65 30 62 16 1.0 35 55 19.5 10.0 20.3 11.0 35 72 17 1.0 41 65 25.5 13.7 27.0 15.0 40 80 18 1.0 46 72 30.7 16.6 31.9 18.6 45 85 19 1.0 52 77 33.2 18.6 35.8 21.2 50 90 20 1.0 56 82 35.1 19.6 37.7 22.8 55 100 21 1.5 63 90 43.6 25.0 46.2 28.5 60 110 22 1.5 70 99 47.5 28.0 55.9 35.5 65 120 23 1.5 74 109 55.9 34.0 63.7 41.5 70 125 24 1.5 79 114 61.8 37.5 68.9 45.5 75 130 25 1.5 86 119 66.3 40.5 71.5 49.0 80 140 26 2.0 93 127 70.2 45.0 80.6 55.0 85 150 28 2.0 99 136 83.2 53.0 90.4 63.0 90 160 30 2.0 104 146 95.6 62.0 106 73.5 95 170 32 2.0 110 156 108 69.5 121 85.0